Fujitsu Component Limited

Fujitsu Corporation

Fujitsu Takamisawa Component Limited

Tokyo Institute of Technology

Fujistu Limited

Nagano Fujitsu Component Limited

Fujitsu Component Limted

Shigemi Kurashima

Masahiro Yanagi

Takashi Arita

Takashi Yuba

Hideki Iwata

Shinichiro Akieda

Takuya Uchiyama

Yuriko Segawa

Nobuyoshi Shimizu

Masahiro Kaneko

Hiroto Inoue

Satoshi Sakurai

Hideaki Yoda

Akio Nakamura

Kazuhiko Ikeda

Mitsuki Kanda

Akihiko Sakaguchi

Katsuhiro Kurasawa

Toshihiro Kusagaya

Hongfei Zhang

Yuriko Nishiyama

Akira Tanaka

Satoshi Moriyama

Noboru Wakatsuki

Noboru Fujii

Rie Gappa

Hiroshi Matsumiya

Kazuo Nomura

Michiko Endoh

Takatoshi Yagisawa

Junichi Akama

Naoyuki Nagao

Norio Endo

Michiko Endo

Mitsuhiro Sekizawa

Hiroshi Hasegawa

Osamu Daikuhara

Yuji Kojima

Nobuo Yatsu

Takashi Nakajima

Keita Harada

Shigeo Tanji

Mieko Kawamoto

Kiyomichi Araki

Hitoshi Ishida

Masaya Endo

Shinobu Sasaki

Hiroshi Kajitani

A high-frequency module includes a first board on which an electronic device is mounted, a second board on which at least wiring is formed, and a radio-wave absorber disposed between the first board and the second board. Multiple slits are formed in the radio-wave absorber.

High-frequency module

An optical module for connecting a ferrule for connecting an optical fiber and a photoelectric transducer mounted on a substrate includes first lenses, second lenses, and a dummy lens. The first lenses are provided on a first side of the optical module to which the ferrule is to be connected. The second lenses and the dummy lens are provided on a second side of the optical module facing a surface of the substrate. The second lenses and the dummy lens are aligned on the same line. An image of the dummy lens is reflected from a mirror to be projected onto a plane on the first side of the optical module.

Optical module with multiple lenses including dummy lens

An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.

Optical module

An optical module for connecting photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.

An optical module includes a board; a photoelectric transducer disposed on the board; an optical waveguide that is connected to the board and transmits light entering or emitted from the photoelectric transducer; an optical connector including a first end connected to the optical waveguide and a second end to be connected to an optical cable; a housing that houses the board, the photoelectric transducer, the optical waveguide, and the optical connector; and a conductive part that is provided between the optical waveguide and the housing, in contact with the housing, and formed of an elastic conductive material or a radio absorbing material.

Optical module with electromagnetic absorption

A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Antenna device, circuit board and memory card

A touch panel includes a first conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a first direction, a second conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a second direction substantially perpendicular to the first direction, and a third conductive film, wherein the separate areas of the first conductive film are arranged side by side in the second direction, and the separate areas of the second conductive film are arranged side by side in the first direction, wherein position detection based on a capacitive method is performed by using the first conductive film and the second conductive film, and wherein a potential of a position of contact between the second conductive film and the third conductive film is detected to detect the position of the contact.

Touch panel and method of detecting position

A disclosed touch panel includes a panel including a plurality of first conductive films arranged in a first direction, and a plurality of second conductive films arranged in a second direction different from the first direction; a first selecting unit connected to the first conductive films to select one first conductive film or more from the first conductive films; a second selecting unit connected to the second conductive films to select one second conductive film or more from the second conductive films; and an inductor connecting the first selecting unit with a power source, which applies a voltage to the first conductive films.

Touch panel

An antenna device includes a ground element configured to be grounded, a first antenna to be connected to a radio communication module, and a second antenna configured to be parasitic on the first antenna, the second antenna receiving no power feed.

Antenna device

A current sensor includes semi-annular first and second magnetic cores, first and second sensors, and a differential output part. The first magnetic core is provided around a wire in which an electric current flows and includes a pair of first magnetic core parts each having a quarter annular shape. The first sensor is provided in the gap between the first magnetic core parts and detects a magnetic flux. The second magnetic core is provided around the wire and includes a pair of second magnetic core parts each having a quarter annular shape. The first and second magnetic cores form an annular magnetic core. The second sensor is provided in the gap between the second magnetic core parts and detects a magnetic flux. The differential output part outputs the differential output of the outputs of the first and second sensors.

Current sensor

An antenna device includes an antenna element to be fed with electric power from an external power supply and a ground element to be coupled to the antenna element. The antenna element and the ground element are formed of a conductive film and arranged to define a rectangular region in a plan view with at least one gap between the antenna element and the ground element. The antenna element has a shape of one of a polygon, a circle, and a part of the polygon or the circle. The antenna element includes a feeding part in its portion close to the ground element.

Antenna device having antenna element and ground element defining planar rectangular region with gap therebetween

A current sensor includes: a lower housing; a lower magnetic core that is housed in the lower housing, and includes a first gap on which a first hall element for detection of a magnetic field is arrangeable; a central housing that detachably engages with the lower housing, and houses the lower magnetic core along with the lower housing; an upper magnetic core that is arranged on the central housing, and forms a ring structure for surrounding a conductor along with the lower magnetic core; and an upper housing that detachably engages with the central housing, and houses the upper magnetic core along with the central housing.

An antenna device to be inserted in a memory card slot of an electronic device, includes an insulating layer, an antenna element formed on one surface of the insulating layer, and a ground element formed on the other surface of the insulating layer, the antenna element and the ground element being formed such that at least a part of the antenna element and at least a part of the ground element protrude from the memory card slot of the electronic device when the antenna device is inserted in the memory card slot, respectively; and a ground pattern extending in parallel relationship with the antenna element to be electrically connected to at least the ground element.

Growing community of inventors

Shinagawa, Japan

Shigemi Kurashima